Service page
- Last UpdatedNov 22, 2022
- 1 minute read
Use the settings in the Service Configuration pane, on the right side of the Service page, to configure the interface to run as a service.

PI ICU uses two buffering services, which are selected from the Installed services list:
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PI Buffer Subsystem (PIBufss)
PI Buffer Subsystem is designed primarily to enhance the high availability (HA) features of the PI Server. PI Buffer Subsystem buffers data only to one non-replicated PI Server or one PI collective (with its various member nodes).
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API Buffer Server (bufserv)
If you send buffered data to PI Server version 3.4.370 or earlier, or if your interfaces run on a non-Windows platform, you need to use bufserv, which has most of the same capabilities of PIBufss.
Refer to the Installed services and Dependencies section for details on adding and configuring services.